Managed XDR

vtdl_1730259146_t94saxcg (Tofsee) — malware analysis report

File info

Filename
vtdl_1730259146_t94saxcg
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
10.3 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
ff0055110461bf3690f2653b1071d622707af2df
SHA256
903c2dbe3ed654f1c92aa14d62f42fdf344579d82c68d0e0ac0a0ee24ed52f82
MD5
fe7ef4531b490e309c5490fcd1e043bd

Malwares

  • Tofsee

Signatures

Execution

T1569.002 persistence_service: Starts newly created service

Persistence

T1543.003 creates_service: Creates a service, that will start automatically

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1543.003 creates_service: Creates a service, that will start automatically
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1070.004 deletes_self: Moves to different location or removes the original executable file
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562.001 disables_security: Disables Windows Security options
T1112 creates_largekey: Saves very large data in the registry, can be used to save the configuration or body of the malware
T1096 persistence_ads: Creates Alternate Data Stream (ADS)
T1562.004 firewall_add_rule: Modifies Firewall rules
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1102.003 cloud_sendspace: Connects to cloud services of Sendspace (potentially for malicious payload delivery)
T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
creates_in_windows: Creates files in the Windows directory
network_bind: Starts servers listening at 0.0.0.0:9394
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
suspicious_process: Spawns a suspicious process
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
origin_langid: Unconventional language of the executable file
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call

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